Add basic snapcraft.yaml.

snap/snapcraft.yaml

@@ -0,0 +1,15 @@
+name: my-snap-name # you probably want to 'snapcraft register <name>'
+version: '0.1' # just for humans, typically '1.2+git' or '1.3.2'
+summary: Single-line elevator pitch for your amazing snap # 79 char long summary
+description: |
+  This is my-snap's description. You have a paragraph or two to tell the
+  most important story about your snap. Keep it under 100 words though,
+  we live in tweetspace and your description wants to look good in the snap
+  store.
+
+confinement: devmode # use 'strict' once you have the right plugs and slots
+
+parts:
+  my-part:
+    # See 'snapcraft plugins'
+    plugin: nil